Magnetic lock pick

Master keyboard

Master-key piston lock

Master-keyed cylinder comprising tumblers and corresponding...

Master/valet keyset and lock

Maximum-security lock

Means for, and a method of, adjusting a cylindrical lockset for

Mechanical card lock

Mechanical code lock

Mechanical key and locking/unlocking key

Mechanical key code verification system

Mechanically changeable cylinder lock and key with rotating pins

Mechanism for releasing device attaching an anti-theft monitor t

Metal magnetic key

Method and apparatus for decoding a pin tumbler lock

Method and apparatus for decoding lock cylinders

Method and apparatus for decoding locks

Method and apparatus for decoding twisting tumbler lock and twis

Method and apparatus for decoding twisting tumbler locks and loc

Method and apparatus for lock mounting